Based on ROTOR's signature Q-Rings, QCX1 rings are compatible with all BCD 110 cranks, especially ROTOR’s 3D+ and 3D30 cranks. Because of the OCP System installation does not require disassembling the crankset from the bike, making ideal gear selection easier. A specific alternating thick/thin (narrow wide) tooth profile does not allow the chain to drop off even in the worst conditions, with no need for a chain guide.

The oval Q-Rings offers unparalleled stiffness and outstanding aerodynamic, hence they are perfectly suited for triathlon and time trial. Furthermore these chainrings increase your power by emulating a Rotor System crankset in the power stroke and by minimizing the intensity of the "dead spot" zones. By extending the time you spend in the power stroke (where 90% of all power is produced) and smoothly accelerating the legs through the critically weak "dead spots".

The Q-Ring design provides smooth and uniform pedaling without sudden accelerations or shifting problems. It increase and decrease the gear ratio throughout each pedal rotation providing a lower gear ratio at the dead spots which improves your knee comfort.

The patented Rotor OCP system (Optimized Chainring Position) enables you to choose the angle where you obtain the maximum benefit and comfort, customized to your pedaling style.

The Aero Q-Rings made of 7075 T6 aluminium. The hard-anodized surface offers a nice looking finish with high durability.

Please note: Labeling may differ. The chainring will be deliverd as QX1 also.

QXL-Rings are more oval than the known Q-Rings. QXL-Rings increase your power by emulating a Rotor System crankset in the power stroke and by minimizing the intensity of the "dead spot" zones. With 16% ovality for 110mm bolt circle diameter.

From 100,00 € order value the delivery inbound Germany is free of shipping costs. In case of cash on delivery (only inside Germany) we charge a cash on delivery fee of 3,50 EUR. Apart from the complete shipment price Deutsche Post AG charges an additional charge of 2,00 EUR for every cash on delivery.

[**]

Please note that our provided times of delivery allow for a complete shipment and the delivery to the address provided by you. It also includes the time of sourcing your items in case they are out of stock. The provided time of delivery refers to a delivery within Germany. Deliveries to foreign countries means longer times of delivery.In the event of you ordering items with different times of delivery, please note that the order will leave our warehouse once complete. Choosing the payment method "Cash in advance" also prolongs the time of delivery. We will only ship your order once the full amount has been payed to our accounts and can be confirmed by our accounts department. Please note the extended delivery time for shipments outside of Germany. The notification "delivery date unknown" means, that the items might me out of stock or unreliable in terms of availability. In that case we do advise you to maybe choose another item out of the bike24 range. More regarding terms of delivery.